using System;

using System.Collections.Generic;

using Newtonsoft.Json;

​

namespace Test

{

    public static class Ext

    {

        public static IEnumerable<T> TransformModel<T>(this IEnumerable<object> xObj)

        {

            var xObj_json = JsonConvert.SerializeObject(xObj, Newtonsoft.Json.Formatting.Indented, new JsonSerializerSettings{NullValueHandling = NullValueHandling.Ignore});

            var xObj_transformed = JsonConvert.DeserializeObject<List<T>>(xObj_json);               

            return xObj_transformed;

        }

    }

​

    public class Program

    {

        public static void Main()

        {

            var custObj = new List<Customer>();

            custObj.Add(new Customer{Id = 1, Name = "blba"});

            custObj.Add(new Customer{Id = 2, Name = "sgfsh"});

            var cust2Obj = custObj.TransformModel<Customer2>();

            foreach(var c2 in cust2Obj)

            {

                c2.Description="updated";

            }

            cust2Obj.Dump();

        }

    }

​

    public class Customer

    {

        public int Id { get; set; }

        public string Name { get; set; }

    }

​

    public class Customer2

    {

        public int Id { get; set; }

        public string Name { get; set; }

        public string Description { get; set; }

    }

}